Reverse screw grommet



FIG. 1 is an inverted perspective view of a reverse screw grommet showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is an end elevational view thereof; and

FIG. 5 is a top plan view thereof. 

The ornamental design for a reverse screw grommet, as shown. 